Hallelujah – we got both the domestic hot water and radiant heat lines working just fine. You and Radiantec have been outstanding in your handholding and technical support… always prompt and always cheerful. We sure appreciate that. When one buys off the internet there is always that little nervous feeling of ‘I hope these guys are honest/capable/professional, etc.’ You guys surely are. If all businesses were run like yours life would be so much easier. Any chance you could provide training for the IRS people?